Bump pillow from 7.0.0 to 8.1.1
Bump pillow from 7.0.0 to 8.1.1

Bumps [pillow](https://github.com/python-pillow/Pillow) from 7.0.0 to 8.1.1.
- [Release notes](https://github.com/python-pillow/Pillow/releases)
- [Changelog](https://github.com/python-pillow/Pillow/blob/master/CHANGES.rst)
- [Commits](https://github.com/python-pillow/Pillow/compare/7.0.0...8.1.1)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
bkosciow/doton